You can enable cookies on your Android device by adjusting the settings in your internet browser, usually Google Chrome. Here ...

To clear the cookies on your iPad, you'll need to go into the Safari section of your Settings app or the settings menu of any third-party browser.

Much as with Google Chrome, you can clear the cache from within the Mozilla Firefox Android app. To access this function, tap the More button on the right of the address bar, again symbolized by three ...